摘要:
A rubber composition having an excellent adhesion with a brass-plated wire and an excellent heat aging resistance of a vulcanite containing (A) 100 parts by weight of a diene-based rubber, (B) 0.1 to 10 parts by weight of, as a vulcanization accelerator, an amine salt compound of a carboxylic acid group-containing disulfide having the formula (I):
and (C) 0.1 to 10 parts by weight of, as a vulcanization agent, a cyclic sulfide compound having the formula (V):
wherein R is a substituted or unsubstituted C 2 -C 20 alkylene group, a substituted or unsubstituted C 2 -C 20 oxyalkylene group or an aromatic ring-containing alkylene group, x is an integer of 2-6 on average and n is an integer of 1-30.
摘要:
A compounding agent for rubber vulcanization comprising an amine salt compound of a carboxylic acid group-containing disulfide having the formula (I):
wherein R 1 , R 2 and R 3 are independently hydrogen or a C 1 -C 20 organic group which may have a heteroatom and/or a substituent group, and X is a C 2 -C 20 organic group which may have a heteroatom and/or a substituent group, a method for producing the same and a rubber composition containing the same, capable of improving the vulcanization rate and vulcanized rubber physical properties, without having a detrimental effect on the scorch time.